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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">The DESFire stack portion of this firmware source</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">is free software written by Maxie Dion Schmidt (@maxieds):</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">You can redistribute it and/or modify</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">it under the terms of this license.</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">This program is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">The complete source distribution of</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">this firmware is available at the following link:</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">https://github.com/maxieds/ChameleonMiniFirmwareDESFireStack.</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">Based in part on the original DESFire code created by</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">@dev-zzo (GitHub handle) [Dmitry Janushkevich] available at</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">https://github.com/dev-zzo/ChameleonMini/tree/desfire.</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">This notice must be retained at the top of all source files where indicated.</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> * DESFireFile.h :</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> * Maxie D. Schmidt (github.com/maxieds)</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#ifndef __DESFIRE_EFFILE_H__</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#define __DESFIRE_EFFILE_H__</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &quot;DESFireFirmwareSettings.h&quot;</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &quot;DESFireInstructions.h&quot;</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#define EFFILE_DATA_CHUNK_SIZE            (4)</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#define EFFILE_DATA_CHUNK_ALIGNAT         __attribute__((align(EFFILE_DATA_CHUNK_SIZE)))</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="comment">// TODO: See type 4 tags on CC and NTAG AIDs and FIDs</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#define ISO7816_4_CURRENT_EF_FILE_ID      0x0000</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#define ISO7816_4_CURRENT_DF_FILE_ID      0x3FFF</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#define ISO7816_4_MASTER_FILE_ID          0x3F00</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="comment">/* File types */</span></div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="comment">// NOTE: See pages 48-49 of the datasheet for more details:</span></div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="preprocessor">#define DESFIRE_FILE_STANDARD_DATA      0</span></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="preprocessor">#define DESFIRE_FILE_BACKUP_DATA        1</span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor">#define DESFIRE_FILE_VALUE_DATA         2</span></div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="preprocessor">#define DESFIRE_FILE_LINEAR_RECORDS     3</span></div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="preprocessor">#define DESFIRE_FILE_CIRCULAR_RECORDS   4</span></div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="preprocessor">#define DESFIRE_FILE_NOFILE_INDEX       (0xff)</span></div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">/* Data about an application&#39;s file is currently kept in this structure.</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="comment"> * The location of these structures is defined by the file index.</span></div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span>DESFIRE_FIRMWARE_PACKING {</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    uint8_t FileType;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    uint8_t FileNumber;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    uint16_t FileSize;</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    uint16_t FileDataAddress; <span class="comment">/* FRAM address of the storage of the data for the file */</span></div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <span class="keyword">union </span>DESFIRE_FIRMWARE_ALIGNAT {</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;        <span class="keyword">struct </span>DESFIRE_FIRMWARE_ALIGNAT {</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;            uint16_t FileSize;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;        } StandardFile;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        <span class="keyword">struct </span>DESFIRE_FIRMWARE_ALIGNAT {</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            uint16_t FileSize;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;            uint8_t BlockCount;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        } BackupFile;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        <span class="keyword">struct </span>DESFIRE_FIRMWARE_ALIGNAT {</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;            int32_t CleanValue;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            int32_t DirtyValue;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;            int32_t LowerLimit;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;            int32_t UpperLimit;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;            uint8_t LimitedCreditEnabled;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;            int32_t PreviousDebit;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        } ValueFile;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        <span class="keyword">struct </span>DESFIRE_FIRMWARE_ALIGNAT {</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;            uint16_t BlockCount;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;            uint16_t RecordPointer;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;            <span class="comment">//uint8_t ClearPending;  // USED ???</span></div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;            uint8_t RecordSize[3];</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;            uint8_t CurrentNumRecords[3];</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;            uint8_t MaxRecordCount[3];</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;        } RecordFile;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    };</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;} DESFireFileTypeSettings;</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;uint16_t GetFileSizeFromFileType(DESFireFileTypeSettings *File);</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span>DESFIRE_FIRMWARE_PACKING {</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    BYTE Num;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    DESFireFileTypeSettings File;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;} SelectedFileCacheType;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="comment"> * File management: creation, deletion, and misc routines</span></div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;uint16_t GetFileDataAreaBlockId(uint8_t FileIndex);</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;uint8_t ReadFileControlBlockIntoCacheStructure(uint8_t FileNum, SelectedFileCacheType *FileCache);</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;uint8_t ReadFileControlBlock(uint8_t FileNum, DESFireFileTypeSettings *File);</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;uint8_t WriteFileControlBlock(uint8_t FileNum, DESFireFileTypeSettings *File);</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="comment">/* Creation and deletion */</span></div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;uint8_t CreateFileHeaderData(uint8_t FileNum, uint8_t CommSettings,</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;                             uint16_t AccessRights, DESFireFileTypeSettings *File);</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;uint8_t CreateStandardFile(uint8_t FileNum, uint8_t CommSettings, uint16_t AccessRights, uint16_t FileSize);</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;uint8_t CreateBackupFile(uint8_t FileNum, uint8_t CommSettings, uint16_t AccessRights, uint16_t FileSize);</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;uint8_t CreateValueFile(uint8_t FileNum, uint8_t CommSettings, uint16_t AccessRights,</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;                        int32_t LowerLimit, int32_t UpperLimit, int32_t Value, <span class="keywordtype">bool</span> LimitedCreditEnabled);</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;uint8_t CreateRecordFile(uint8_t FileType, uint8_t FileNum, uint8_t CommSettings, uint16_t AccessRights,</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;                         uint8_t *RecordSize, uint8_t *MaxRecordSize);</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;uint8_t DeleteFile(uint8_t FileIndex);</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="comment">/* Transactions */</span></div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="comment">/* File transfers */</span></div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;TransferStatus ReadDataFileTransfer(uint8_t *Buffer);</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;uint8_t WriteDataFileTransfer(uint8_t *Buffer, uint8_t ByteCount);</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;uint8_t ReadDataFileSetup(uint8_t FileIndex, uint8_t CommSettings, uint16_t Offset, uint16_t Length);</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;uint8_t WriteDataFileSetup(uint8_t FileIndex, uint8_t FileType, uint8_t CommSettings, uint16_t Offset, uint16_t Length);</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;uint16_t ReadDataFileIterator(uint8_t *Buffer);</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;uint8_t WriteDataFileInternal(uint8_t *Buffer, uint16_t ByteCount);</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;uint16_t WriteDataFileIterator(uint8_t *Buffer, uint16_t ByteCount);</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="comment">/* Special values for access key IDs */</span></div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;<span class="preprocessor">#define DESFIRE_ACCESS_FREE     0xE</span></div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;<span class="preprocessor">#define DESFIRE_ACCESS_DENY     0xF</span></div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;<span class="comment">/* Validation routines */</span></div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="preprocessor">#define VALIDATE_ACCESS_READWRITE          ((uint16_t) (0x000f))</span></div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;<span class="preprocessor">#define VALIDATE_ACCESS_WRITE              ((uint16_t) (0x000f &lt;&lt; 4))</span></div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;<span class="preprocessor">#define VALIDATE_ACCESS_READ               ((uint16_t) (0x000f &lt;&lt; 8))</span></div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;<span class="preprocessor">#define VALIDATE_ACCESS_CHANGE             ((uint16_t) (0x000f &lt;&lt; 12))</span></div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;<span class="preprocessor">#define VALIDATED_ACCESS_DENIED            0</span></div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="preprocessor">#define VALIDATED_ACCESS_GRANTED           1</span></div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="preprocessor">#define VALIDATED_ACCESS_GRANTED_PLAINTEXT 2</span></div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="comment"> * [READ (4 bits) | WRITE | READ-WRITE | CHANGE]</span></div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="comment"> * Stored in little endian format from memory:</span></div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;<span class="preprocessor">#define GetReadPermissions(AccessRights) \</span></div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;<span class="preprocessor">     (BYTE) (AccessRights &amp; 0x000f)</span></div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="preprocessor">#define GetWritePermissions(AccessRights) \</span></div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="preprocessor">     (BYTE) (((0x00f0 &amp; AccessRights) &gt;&gt; 4) &amp; 0x000f)</span></div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;<span class="preprocessor">#define GetReadWritePermissions(AccessRights) \</span></div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="preprocessor">     (BYTE) (((0x0f00 &amp; AccessRights) &gt;&gt; 8) &amp; 0x000f)</span></div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="preprocessor">#define GetChangePermissions(AccessRights) \</span></div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="preprocessor">     (BYTE) (((0xf000 &amp; AccessRights) &gt;&gt; 12) &amp; 0x000f)</span></div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="keyword">const</span> <span class="keywordtype">char</span> *GetFileAccessPermissionsDesc(uint16_t fileAccessRights);</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;<span class="comment"> * There are also command/instruction-wise</span></div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;<span class="comment"> * citations given from file&#39;s access permissions. This data is taken</span></div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;<span class="comment"> * from the table on page 21 of the NXP application note:</span></div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;<span class="comment"> * https://www.nxp.com/docs/en/application-note/AN12343.pdf</span></div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;uint8_t CreateFileCommonValidation(uint8_t FileNum);</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;uint8_t ValidateAuthentication(uint16_t AccessRights, uint16_t CheckMask);</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="preprocessor">#endif</span></div></div><!-- fragment --></div><!-- contents -->
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